| 年度 | 数值 | 单位 | 发布日期 |
| 2025/2026 | 4300 | 吨 | 2026-9 |
| 2024/2025 | 3790 | 吨 | 2026-9 |
| 2023/2024 | 3622 | 吨 | 2026-9 |
| 2022/2023 | 2882 | 吨 | 2026-9 |
| 2021/2022 | 3057 | 吨 | 2026-9 |
| 2020/2021 | 2670 | 吨 | 2026-9 |
| 2019/2020 | 2056 | 吨 | 2026-9 |
| 2018/2019 | 4283 | 吨 | 2026-9 |
| 2017/2018 | 4282 | 吨 | 2026-9 |
| 2016/2017 | 3782 | 吨 | 2026-9 |
| 2015/2016 | 2906 | 吨 | 2026-9 |
| 2014/2015 | 3616 | 吨 | 2026-9 |
| 2013/2014 | 4000 | 吨 | 2026-9 |
| 2012/2013 | 4000 | 吨 | 2026-9 |
| 2011/2012 | 4200 | 吨 | 2026-9 |
| 2010/2011 | 1915 | 吨 | 2026-9 |
| 2009/2010 | 1930 | 吨 | 2026-9 |
| 2008/2009 | 1800 | 吨 | 2026-9 |
| 2007/2008 | 0 | 吨 | 2026-9 |
| 2006/2007 | 0 | 吨 | 2026-9 |
| 2005/2006 | 0 | 吨 | 2026-9 |
| 2004/2005 | 5 | 吨 | 2026-9 |
| 2003/2004 | 798 | 吨 | 2026-9 |
| 2002/2003 | 2080 | 吨 | 2026-9 |
| 2001/2002 | 2800 | 吨 | 2026-9 |
| 2000/2001 | 2500 | 吨 | 2026-9 |
| 1999/2000 | 12612 | 吨 | 2026-9 |
| 1998/1999 | 9913 | 吨 | 2026-9 |
| 1997/1998 | 8804 | 吨 | 2026-9 |
| 1996/1997 | 2860 | 吨 | 2026-9 |
| 1995/1996 | 7762 | 吨 | 2026-9 |
| 1994/1995 | 6500 | 吨 | 2026-9 |
| 1993/1994 | 12135 | 吨 | 2026-9 |
| 1992/1993 | 3793 | 吨 | 2026-9 |
| 1991/1992 | 5806 | 吨 | 2026-9 |
| 1990/1991 | 15000 | 吨 | 2026-9 |
| 1989/1990 | 22079 | 吨 | 2026-9 |
| 1988/1989 | 17947 | 吨 | 2026-9 |
| 1987/1988 | 15682 | 吨 | 2026-9 |
| 1986/1987 | 8782 | 吨 | 2026-9 |
| 1985/1986 | 50478 | 吨 | 2026-9 |
| 1984/1985 | 68091 | 吨 | 2026-9 |
| 1983/1984 | 49597 | 吨 | 2026-9 |
| 1982/1983 | 21611 | 吨 | 2026-9 |